Làm vs giải thích giúp tớ vs ạ Mark the letter A, B, C, or D to indicate the sentence that is CLOSEST in meaning to each f the following questions 1.It's only her second time in an international conference about further education. A. It was the second time she had been in an international conference about further education. B. She has only been in an international conference about further education once before. C. She has never been to any international conference about further education before. D. She has already got used to being in an international conference about further education. 2.I started writing this essay hours ago and it's still not right. A. I have been writing this essay for hours and it's still not right. B. It's hours ago since I last wrote this essay correctly. C. The last time I started writing this essay was hours ago, which is still not right. D. I didn't stop to write this essay hours ago and it's still not right. 3.“You'd better work harder if you don't want to retake the exam!” the teacher said to Jimmy. A. The teacher advised Jimmy to work harder if he didn't want to retake the exam. B. The teacher ordered Jimmy to work harder if he didn't want to retake the exam. C. The teacher reminded Jimmy to work harder if he didn't want to retake the exam. D. The teacher warned Jimmy to work harder if he didn't want to retake the exam.